The origin of this classic simple meteorite impact crater was long the
subject of controversy. The discovery of fragments of the Canyon Diablo
meteorite, including fragments within the
breccia deposits that partially
fill the structure, and a range of shock metamorphic features in the
target sandstone proved its impact origin. Target rocks include Paleozoic
carbonates and sandstones; these rocks have been overturned just outside
the rim during ejection. The hummocky deposits just beyond the rim are
remnants of the ejecta blanket. This aerial view shows the dramatic
expression of the crater in the arid landscape.
(Caption courtesy of LPI)